1-2-29 उच्चैरुदात्तः । - this seems like the one with "।" sign above letters because of उच्चै:
1-2-31 समाहारः स्वरितः । - This one with no underline or "।" accent.
However this does not agree with DhatuPatha, it appears that "।" above letters appears to be स्वरित sign. Which sort makes sense because "।।" sign is called दीर्घ स्वरित ।
I would appreciate clarification on this issue. I want to understand this issue because
उदादत्तेत् - परस्मैपद forms alone
अनुदात्तेत् - आत्मनेपद forms alone
स्वरितेत् - forms in both परस्मैपद & आत्मनेपद